Hello there,
I registered especially because of this topic.
About the not translated ROM: I had the same problem after saving/loading and found that the language setting was back to kanji or whatever those symbols mean, i.e. to fix that, open the settings (bottom right symbol) and adjust the settings of the 5th entry from the top.
About translating: which folder should be used (2 or 3?) and is there some information about the different files, i.e. what kind of text they refer to?